Table 4.1 simulated data for torque error.
TORQUE ERROR (Nm) WITHDIRECT TORQUE CONTROL TORQUE ERROR (Nm) WITH FUZZY TIME (S)
0 0 0
0.2 0.025 1
0.15 0.018 2
0.16 0.02 3
0.15 0.0195 4
0.15 0.0195 10

Figure 4.1 Result for torque error using DTC and fuzzy logic with duty ratio.
Analysis, the data in the tablewere applied. The torque behavior of the motor using ordinary DTC and fuzzy logic with duty ratio control for a torque command of 0.15Nm with the output drive updated at a rate of 5kHz were used. The flux ripple regained was 0.05wb (0.2-0.15)N-m greater and lesservalues
with the only DTC while infuzzy logic with duty ratio control, the ripple was reduced further to 0.0055Nm(0.025-0.00195)Nm greaterand lesser value, assumed under shoot in the torque value at the starting point of each voltage vector were neglected.
Table 4.2 Data for flux linkage error
ERROR IN FLUX LINKAGE (Wb) WITH DTC ERROR IN FLUX LINKAGE (Wb) WITH FUZZY TIME
0 0 0
18 2.4 1
12 1.5 2
14 1.7 3
13.33 1.733 4
13.33 1.733 10

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Figure 4.2 Result for flux linkage in fuzzy logic with duty ratio and DTC
In illustration, data in table were used. torque response of the motor in the control for a step torque in fuzzy logic with duty ratio control and DTC for a torque command of 2.4Wb with the motor drive output updated at a rate of 5kHz were used, the ripple generated was 4.67Wb (18-13.33)Wb greater and lesser values with ordinary DTC, while in fuzzy logic with duty ratio control, ripples was reduced further to 0.667b (2.4-1.733)Wb upper and lower values, assumed order response in flux value at starting voltage sector were neglected.
Table 4.3 Data for position of the stator flux linkage.
ERROR IN THE POSITION OF FLUX LINKAGE WITH DTC ERROR IN THE POSITION OF FLUX LINKAGE WITH FUZZY TIME
0 0 0
3.3 0.9 1
2.2 0.06 2
2.5 0.07 3
2.45 0.0643 4

Figure 43 Result for position of stator flux linkage using DTC and fuzzy logic with duty ratio.
In the analysis, the data in the tablewere used. The position where the stator flux linkage of the motor using ordinary DTC and fuzzy logic with duty ratio control respectively for a step angular command of 3.3 degree with the drive output updated at a rate of 5kHz were used, the position where the flux linkage ripple was reduced to 0.85degree (3.3-2.45) greater and lesser values with the ordinary DTC while in fuzzy logic with duty ratio control, the ripple wasreduced to 0.857 degree (0.9-0.0643)degreegreater and lesser values, assumed the under shoot in the flux value at the starting of each voltage sector were neglected.
4.2 DISCUSSI0N
In the analysis, the data in the tables were used. The torque, flux, and the position of the stator flux linkage responsesof the motor using ordinary DTC and fuzzy logic with duty ratio control respectively for a step torque, flux and angular command of 0.15N¬-m, 2.4wb and 3.3 degree with the drive output updated at a rate of 5KHZ were used. The torque, flux and the position of the flux linkage space vector ripples generated were 0.09N-m, 4.67wb and 0.85 degree approximately, while in fuzzy logic control with duty ratio, the ripples were reduced to 0.0055N-m, 0.44wb and 0.04 degree respectively, neglecting the both under shoot at the beginning of each voltage vector. With these, we observed that the ripples were reduced drastically and able to achieve 95% of improvement.

Table 4.2 describes the current practice of solid waste management system in Mekane Selam Town administration. Accordingly, 149(60.1%) of the respondents strongly agree to the current solid waste management in the town is traditional whereas, 50(20.2%) agree to the statement some respondents 26(10.5%) choose to neutral, while the reaming 15(6.0%) and 3(1.2%) responded strongly disagree and disagree respectively.
Current waste-management industry in the developed world has come far, and with recycling and other advances it will continue to grow and change with the needs of the community. However, countries in the developing world have up till now to see many of these changes to their own solid-waste management systems McAllister,Jessica,(2015).Today the management of waste circumstance in developing world is quite poor: there SWMs in this countries are more challenge of environment found in past solid waste management’s in the urbanization world. Traditionally, the municipalities have been in accusing of as long as SWM services in developing countries (Al-khatibet al., 2009)
This implies that majority respondents responded that currently solid waste management system is traditional as well as open space and sensitive area in the study area.
To support the above idea the interviewees of the two selected kebekle executive leaders stated that within the town there is a huge amount of solid waste to the source of condensed residents it is obvious to seen every dwellers are dispose solid waste near the house ,
collect and burnt simply their isn’t awareness to selected waste to decompose or none decompose part all are thrown in the way of traditional system this implies that most of town residents came from around the town rural areas and there is no permanent or temporary disposal space in addition to lack of awareness.

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